CN2590310Y - Lens regulating device for back projection television - Google Patents
Lens regulating device for back projection television Download PDFInfo
- Publication number
- CN2590310Y CN2590310Y CN02295470U CN02295470U CN2590310Y CN 2590310 Y CN2590310 Y CN 2590310Y CN 02295470 U CN02295470 U CN 02295470U CN 02295470 U CN02295470 U CN 02295470U CN 2590310 Y CN2590310 Y CN 2590310Y
- Authority
- CN
- China
- Prior art keywords
- pedestal
- groove
- inner core
- back projection
- slide block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
Abstract
The utility model discloses a lens regulating device for a back projection television, which mainly comprises a base and an internal barrel which is sheathed in the base, wherein, an oblique guide groove is arranged on one side wall of the internal barrel; a through groove is arranged on one side wall of the base at the radial direction; a regulating ring is also sheathed at the outside of the base; a slide block is arranged among the regulating ring, the base, and the internal barrel; the slide block is extended in the through groove of the base and the guide groove of the internal barrel, and is fixed on the regulating ring. When the regulating ring is rotated, the slide block can slide in the oblique guide groove of the internal barrel to correspond to the base; the sliding block pokes the internal barrel to do axial displacement corresponding to the base. Thus, the utility model has an imaging effect regulating function; for daily use articles, the force application of the regulating ring of the utility model is easy, and focusing and position are quick; meanwhile, the regulating ring can cover the through groove on the base, so regulation is a hidden type. Thus, the utility model has beautiful appearance and good dust prevention.
Description
Technical field
The utility model relates to a kind of back projection TV camera lens, refers in particular to a kind of back projection TV lens adjustment device.
Background technology
Clear for ease of imaging, the adjusting device of the back projection TV camera lens of prior art, as shown in Figure 1, it mainly comprises pedestal 1 ' and inner core 2 ', inner core 2 ' is to be placed in the pedestal 1 ', be to be provided with the lens (not shown) in pedestal 1 ' bottom, and lens group is to be arranged at inner core 2 ' to go up (not shown), adjusting device is exactly by adjusting the position relation of pedestal 1 ' bottom lens and inner core 2 ', to make the back projection TV imaging clear.This adjusting device mainly is that symmetry offers oblique guide groove 11 ' on pedestal 1 ' two side, relative set two projections 21 ' on inner core 2 ' sidewall, this two projection 21 ' is to stretch to place in two guide grooves 11 ', on two projections 21 ', be arranged with butterfly nut 12 ' respectively, when adjusting the position, unscrew butterfly nut 12 ', pull two projections 21 ' simultaneously, drive inner core 2 ' relative pedestal 1 ' rotation, because the effect of oblique guide groove 11 ', then inner core 2 ' can have an axial displacement by relative pedestal 1 ', thereby play the effect of regulating the lens imaging effect, when choosing the optimum position, again butterfly nut 12 ' is screwed, then with the position relation locking of pedestal 1 ' with inner core 2 '.
The adjusting device of said structure, when adjusting, the not only relative pedestal of inner core moves axially, and pedestal is rotating relatively simultaneously, and because inner core is heavier, can be comparatively painstaking in practical operation; In addition, when adjusting to the optimum position, two butterfly spiral shells are solid, so complex operation and easily produce the focal length drift, thereby influence the quality of imaging; Because guide groove exposes, influence dust stratification dirt attractive in appearance and easy simultaneously.
The utility model content
The purpose of this utility model provides a kind of back projection TV lens adjustment device of adjusting laborsaving, easy, quick focusing, location.
For achieving the above object, solution of the present utility model is: a kind of back projection TV lens adjustment device, and it mainly comprises pedestal, inner core, inner core is to be placed in the pedestal, wherein: offer oblique guide groove on the sidewall of inner core; Offer groove on the pedestal sidewall, an also sheathed adjustable ring is provided with slide block between adjustable ring, pedestal, inner core outside pedestal, and this slide block is to stretch the guide groove of the groove that places pedestal and inner core and be fixed on the adjustable ring.
The sidewall of described pedestal also offers guide hole vertically, and the position of corresponding this guide hole is provided with lock on inner tube wall.
Offer oblique guide groove respectively on the relative two side of described inner core, pedestal offers groove respectively on the relative two side, and the adjustable ring inner ring is provided with slot to make way and the positioning rib that fixes with slide block; Have on the slide block and the corresponding groove of adjustable ring positioning rib.
Axially be provided with guiding groove on the described inner core sidewall, then the pedestal madial wall is provided with guiding rib, and guiding rib slides up and down in guiding groove.
A described locking cap is that lock places lock in order to fixed pedestal and inner core.
Be provided with the adjustment scale above or below the groove of described pedestal.
Described adjustable ring is provided with through hole, slide block be by this through hole by screw locking on adjustable ring.
After adopting such scheme, because back projection TV lens adjustment device of the present utility model, be the slide block on the adjustable ring that is nested with outward by pedestal, in the oblique guide groove of inner core, slide rotating adjustment ring, then relative pedestal, slide block is stirred the relative pedestal of inner core and is done axial displacement, thereby plays the effect of adjusting imaging effect, commonly uses product relatively, the application of force of the utility model adjustment ring is light, and focusing and location are rapidly; Adjustable ring can cover the groove on the pedestal simultaneously, and it just is concealed regulating, so the product monnolithic case is attractive in appearance, and is dustproof good.
Description of drawings
Fig. 1 is a schematic perspective view of commonly using product;
Fig. 2 is a three-dimensional exploded view of the present utility model;
Fig. 3 is an adjustable ring schematic diagram of the present utility model;
Fig. 4 is a three-dimensional combination figure of the present utility model;
Fig. 5 enforcement state diagram of the present utility model.
Embodiment
As shown in Figure 2, back projection TV lens adjustment device of the present utility model mainly comprises pedestal 1, inner core 2, adjustable ring 3;
As shown in Figure 3, adjustable ring 3 is a ring body, relative two placements are respectively equipped with through hole 31 on its ring wall, two slide blocks 32 are to be fixed in the ring body inboard by through hole 31 by screw 33 respectively, on the inwall of through hole 31 positions of adjustable ring 3, be provided with the slot to make way 34 and positioning rib 35 that fix with slide block 32, and have on the slide block 32 and adjustable ring 3 positioning ribs 35 corresponding grooves 321, on the outer wall of adjustable ring 3, be set to increase the male and fomale(M﹠F) 36 of friction.
During assembling, as shown in Figure 4, inner core 2 is to be placed in the pedestal 1, meanwhile, guiding groove 23 is that guiding rib 15 with pedestal 1 is combined together on the inner core 2, does axial displacement to guarantee inner core 2 relative pedestals 1, and the lock 22 on the inner core 2 is guide holes 14 of aligning pedestal 1 and assembling; The groove 12 of pedestal 1 is corresponding with the inclined guide groove 21 of inner core 2, and slide block 32 is positioned in the inclined guide groove 21 on the inner core 2, and with slide block 32 upper grooves 321 outwardly; Adjustable ring 3 is placed on pedestal 1 outside, and with the groove 321 on the 35 aligning slide blocks 32 of the positioning rib on the adjustable ring 3, and be inserted in the location; It is fastening with slide block 32 and adjustable ring 3 to pass through hole 31 with screw 33.
When adjusting the imaging definition of camera lens, as shown in Figure 5, rotating adjustment ring 3, adjustable ring 3 moves horizontally, then the slide block 32 on the adjustable ring 3 is to do spinning movement in the groove 12 of pedestal 1, but do not axially move, because the setting of the oblique guide groove 21 of inner core 2, can stir inner core 2 relative pedestals 1 when the slide block 32 on the adjustable ring 3 slides and do axial displacement in oblique guide groove 21, to realize adjusting the function of camera lens, the lock 22 of inner core 2 is aimed at the position of the guide hole 14 of pedestal 1 all the time simultaneously, when camera lens is adjusted to the appropriate location, inner core 2 and pedestal 1 locking can be played the effect that restriction adjustable ring 3 rotates simultaneously by a locking cap 25.
Claims (8)
1, a kind of back projection TV lens adjustment device, it mainly comprises pedestal, inner core, inner core is to be placed in the pedestal, it is characterized in that: offer oblique guide groove on the sidewall of inner core; Radially offer groove on the pedestal sidewall, an also sheathed adjustable ring is provided with slide block between adjustable ring, pedestal, inner core outside pedestal, and this slide block is to stretch the guide groove of the groove that places pedestal and inner core and be fixed on the adjustable ring.
2, back projection TV lens adjustment device as claimed in claim 1 is characterized in that: the sidewall at pedestal also offers guide hole vertically, and the position of corresponding this guide hole is provided with lock on inner tube wall.
3, back projection TV lens adjustment device as claimed in claim 1, it is characterized in that: on the relative two side of inner core, offer oblique guide groove respectively, pedestal offers groove respectively on the relative two side, and the adjustable ring inner ring is provided with slot to make way and the positioning rib that fixes with slide block.
4, back projection TV lens adjustment device as claimed in claim 3 is characterized in that: have on the slide block and the corresponding groove of adjustable ring positioning rib.
5, back projection TV lens adjustment device as claimed in claim 1 is characterized in that: axially be provided with guiding groove on the inner core sidewall, then the pedestal madial wall is provided with guiding rib, and guiding rib slides up and down in guiding groove.
6, back projection TV lens adjustment device as claimed in claim 2 is characterized in that: a locking cap is that lock places lock in order to fixed pedestal and inner core.
7, as claim 1 or 3 described back projection TV lens adjustment devices, it is characterized in that: above or below the groove of pedestal, be provided with the adjustment scale.
8, as claim 1 or 3 described back projection TV lens adjustment devices, it is characterized in that: adjustable ring is provided with through hole, slide block be by this through hole by screw locking on adjustable ring.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02295470U CN2590310Y (en) | 2002-12-31 | 2002-12-31 | Lens regulating device for back projection television |
US10/408,556 US20040125471A1 (en) | 2002-12-31 | 2003-04-08 | Projection lens regulator for rear projection television |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN02295470U CN2590310Y (en) | 2002-12-31 | 2002-12-31 | Lens regulating device for back projection television |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2590310Y true CN2590310Y (en) | 2003-12-03 |
Family
ID=29430147
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN02295470U Expired - Fee Related CN2590310Y (en) | 2002-12-31 | 2002-12-31 | Lens regulating device for back projection television |
Country Status (2)
Country | Link |
---|---|
US (1) | US20040125471A1 (en) |
CN (1) | CN2590310Y (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100582847C (en) * | 2007-10-16 | 2010-01-20 | 鸿富锦精密工业(深圳)有限公司 | Projector lens assembly |
CN103105661A (en) * | 2011-11-14 | 2013-05-15 | 中强光电股份有限公司 | Lens component and projection device |
CN106646872A (en) * | 2016-10-27 | 2017-05-10 | 中山联合光电科技股份有限公司 | VR glasses convenient for electric adjustment |
CN107065177A (en) * | 2016-10-27 | 2017-08-18 | 中山联合光电科技股份有限公司 | A kind of VR glasses for being easy to adjust manually |
CN108167603A (en) * | 2017-12-28 | 2018-06-15 | 中国华录集团有限公司 | Adjustable ultrashort burnt laser projection tv |
WO2018219242A1 (en) * | 2017-05-27 | 2018-12-06 | 深圳多哚新技术有限责任公司 | Dust-proof optical lens focusing assembly |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060118442A (en) * | 2003-10-07 | 2006-11-23 | 렌즈베이비즈, 엘엘씨 | Flexible lens mount system for rapid tilt photography |
US7154567B2 (en) * | 2004-02-09 | 2006-12-26 | Genius Electronic Optical Co., Ltd. | Projection lens regulator for rear projection television |
WO2008027846A2 (en) * | 2006-08-30 | 2008-03-06 | Lensbabies, Llc | Movable lens systems and associated methods |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0622806Y2 (en) * | 1989-09-27 | 1994-06-15 | パイオニア株式会社 | Lens frame |
JPH0743689Y2 (en) * | 1990-10-17 | 1995-10-09 | パイオニア株式会社 | Lens frame |
JP3915020B2 (en) * | 2001-02-05 | 2007-05-16 | フジノン株式会社 | Lens barrel structure of zoom lens device |
KR100433534B1 (en) * | 2002-01-09 | 2004-05-31 | 삼성전자주식회사 | Project lens unit of projection TV |
-
2002
- 2002-12-31 CN CN02295470U patent/CN2590310Y/en not_active Expired - Fee Related
-
2003
- 2003-04-08 US US10/408,556 patent/US20040125471A1/en not_active Abandoned
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100582847C (en) * | 2007-10-16 | 2010-01-20 | 鸿富锦精密工业(深圳)有限公司 | Projector lens assembly |
CN103105661A (en) * | 2011-11-14 | 2013-05-15 | 中强光电股份有限公司 | Lens component and projection device |
CN103105661B (en) * | 2011-11-14 | 2015-05-06 | 中强光电股份有限公司 | Lens component and projection device |
CN106646872A (en) * | 2016-10-27 | 2017-05-10 | 中山联合光电科技股份有限公司 | VR glasses convenient for electric adjustment |
CN107065177A (en) * | 2016-10-27 | 2017-08-18 | 中山联合光电科技股份有限公司 | A kind of VR glasses for being easy to adjust manually |
WO2018219242A1 (en) * | 2017-05-27 | 2018-12-06 | 深圳多哚新技术有限责任公司 | Dust-proof optical lens focusing assembly |
CN108167603A (en) * | 2017-12-28 | 2018-06-15 | 中国华录集团有限公司 | Adjustable ultrashort burnt laser projection tv |
Also Published As
Publication number | Publication date |
---|---|
US20040125471A1 (en) | 2004-07-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |